well, of course I am, I want to do research and that is impossible once the population is high.
does the button prevent cities from growing via immigrants?
still...with America I hit the population-limit in ~1830 without having expanded beyond US/Canada-territory (the Mexicans even hold Las Vegas and France still owns Quebec).
So any conquests from here on slow down my research considerably.
Using the "avoid growth"-button in every city for (almost) the entire game just is annoying as it means that your empire will be incredibly inefficient.
Basically removing the draft-option while still limiting tech-cost via population means Slavery stays the most powerful civic even in modern times.
Also it robs the Americans partly of their UP, as the population-growth via immigrants becomes a nuissance that has to be counterbalanced by using inappropriate civics (to either draft or whip the immigrants).
Sure, I could just let the cities grow and then regularly starve them by running max specialists, but that seems even weirder and more counter-intuitive.
Short: by moving the draft option you just strengthened Slavery and made the Industrial/Modern Era even more counterintuitive to play which increases the problems users new to DoC will face.